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I have a Seig X2.7 mini mill. I have to cut a Mod 1 gear with 63 teeth in aluminium. I have commercial Mod 1 gear cutter set. I checked the internet for gear dimensions and indexing calculation. Mod 1 gear. 63 teeth OD 65mm Root dia 60.5mm Pitch dia 63mm. My rotary table has 1:72 ratio. I will...

Hello, I am planning to built a model boiler for my PM research steam engines. I would not like to exceed working pressure of boiler more than 3 bars. I have gone through some plans on modelengineeringwebsite.com for the same. After seeing the plans I am confident that I can get all the...

Hello, Until recently I was using a granite countertop piece as a surface plate. I recently purchased a granite surface plate. Its a 0 grade plate 300 x 300 x 75mm size. I got it for around USD 50. It came with test certificate and the values were hand written. So I think they must be somewhat...

Hi, I have a Sieg C4B lathe. I am in process of renewing the spindle bearings. The lathe has one tapered roller bearing 32007 at front and a deep grove ball bearing 6206 at rear end. As the rear bearing pocket is deep enough I am planning to fit a axial thrust bearing 30206 there. Some...

Hello, I have a Sieg C4B lathe. It is similar in size to Sieg SC4 lathe but it has a AC reversible motor and belt and pulley system for speed control. For slow speeds/ back gear the lathe uses a toothed belt of 1.5mm pitch. This belt is "delicate" and gets damaged easily and is very difficult...

I bought a set of Rider Ericson casting kit from Myers website. That was maybe two years back. The casting are good but the drawings require some improvement. I started machining them to the best of my ability. All the imperial dimensions were converted to metric. I finished the engine and was...

Hello I bought casting kit for Rider Ericson hot air engine from Myers. I need some help with them. While machining the leg I made a boo boo. I tried to take a deeper cut and broke one of the leg. I was thinking about using 2 part epoxy to fix it. Is there any better way to fix it. One of...

Good day, I bought myself a lathe test bar. I got it for about USD 15. I checked the bar along its length. It has a consistent dia of 22mm. I checked my lathe spindle runout with this bar. I am getting 0.04mm runout near the spindle and 0.07mm at the far end at about 250mm from spindle...

Hello, I saw a Wimshurst machine on YouTube. I had never heard about it earlier and went on binge watching all the videos about it. After collecting all the required materials I made myself a Wimshurst machine. The disc are 250mm acrylic with 20 sector each. Sector are made from copper tape...

Hi, I have completed two of the PM Research engines #1 and #5 and a bar stock Stirling engine. I now feel fairly confident to broaden my horizons. I am interested in building a Rider Ericsson pumping engine. I have my eyes on this kit https://www.myersengines.com/engines/pumping_engine_1.htm...

I ordered these castings from US about 3 years ago. One of my friends brought it here to India. Saved some on the shipping cost.:) I followed the two series on YouTube on building of this engine as best as I can. All the dimensions were changed from imperial to metric. All the fasteners were...

Hello After I completed my PM research #5 engine I have gained enough confidence to go for another engine. I have a PM research #1 kit with me. I am watching all the YouTube video currently being shown about machining the above engine. I was thinking of ordering a hot air engine casting kit...

I completed my first Stirling engine and was able to run it. I have taken the idea from Moriya hot air engine but didn't follow the plans. Both cylinder stroke and bore are similar but not exact as Moriya. Also I used a scotch yoke mechanism for displacer cylinder. Power cylinder is cast iron...

My first engine. This is the first engine that I built. I had the kit lying with me for more than a year but I was afraid to touch it. Mainly the imperial dimensions were giving me a scare. Faced many challenges mostly due to my inexperience and lack of tools and fixtures. I learned a lot...

Hi, With the covid 19 situation still going on and I being stuck on an offshore oil field for last 6 months my mind is going all places. These are a few things that I came across as a marine engineer. I sometimes dream of using these design ideas in a model engine of my own. I don’t know if the...

Hi, I work in offshore oil industry and am stuck on job due to covid 19. This is my 5th month going on here for original 45 days of duty cycle. Anyways I have some questions to ask. We recently overhauled two Yanmar engines and three CAT engines here and now have a lot of old parts as scrap. I...

I know this is an old topic discussed in hundreds of forums but I am posting it anyways. I just got myself unmachined kits from PM research for #1 and #5 steam engines. I have a Sieg C4 lathe but I may need a mill to complete these engines. So the question is which one is preferable Sieg SX2 or...

Hi, I am Nikhil, a marine engineer by profession. I have been working on ships as an engineer for last 20 years. I have been visiting this site for last 5 or so years but signed up today. I made my first model a Stirling Engine when i was studying engineering. It worked but required a lot of...